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/// Host Control Pipe.
///
/// Offset: 0x0c
/// Reset: 0xXXXX
/// Property: PAC Write-Protection, Write-Synchronized, Read-Synchronized
#[derive(Clone, Copy, Debug)]
#[repr(C)]
pub(crate) struct CtrlPipe(u16);
pub(crate) struct R {
bits: u16,
}
pub(crate) struct W {
bits: u16,
}
impl CtrlPipe {
pub fn read(&self) -> R {
R { bits: self.0 }
}
pub fn write<F>(&mut self, f: F)
where
F: FnOnce(&mut W) -> &mut W,
{
let mut w = W { bits: self.0 };
f(&mut w);
self.0 = w.bits;
}
}
impl From<u16> for CtrlPipe {
fn from(v: u16) -> Self {
Self(v)
}
}
impl R {
/// Value in raw bits.
pub fn bits(&self) -> u16 {
self.bits
}
pub fn permax(&self) -> PErMaxR {
let bits = {
const POS: u8 = 12;
const MASK: u16 = 0xf;
((self.bits >> POS) & MASK) as u8
};
PErMaxR(bits)
}
pub fn pepnum(&self) -> PEpNumR {
let bits = {
const POS: u8 = 8;
const MASK: u16 = 0xf;
((self.bits >> POS) & MASK) as u8
};
PEpNumR(bits)
}
pub fn pdaddr(&self) -> PDAddrR {
let bits = {
const POS: u8 = 0;
const MASK: u16 = 0x3f;
((self.bits >> POS) & MASK) as u8
};
PDAddrR(bits)
}
}
/// Pipe Error Max Number
///
/// These bits define the maximum number of error for this Pipe before
/// freezing the pipe automatically.
pub(crate) struct PErMaxR(u8);
impl PErMaxR {
pub fn max(&self) -> u8 {
self.0
}
}
/// Pipe EndPoint Number
///
/// These bits define the number of endpoint for this Pipe.
pub(crate) struct PEpNumR(u8);
impl PEpNumR {
pub fn epnum(&self) -> u8 {
self.0
}
}
/// Pipe Device Address
///
/// These bits define the Device Address for this pipe.
pub(crate) struct PDAddrR(u8);
impl PDAddrR {
pub fn addr(&self) -> u8 {
self.0
}
}
impl W {
/// Write raw bits.
pub unsafe fn bits(&mut self, v: u16) -> &mut Self {
self.bits = v;
self
}
pub fn permax(&mut self) -> PErMaxW {
PErMaxW { w: self }
}
pub fn pepnum(&mut self) -> PEpNumW {
PEpNumW { w: self }
}
pub fn pdaddr(&mut self) -> PDAddrW {
PDAddrW { w: self }
}
}
pub(crate) struct PErMaxW<'a> {
w: &'a mut W,
}
impl<'a> PErMaxW<'a> {
pub unsafe fn bits(self, v: u8) -> &'a mut W {
const POS: u8 = 12;
const MASK: u8 = 0xf;
self.w.bits &= !((MASK as u16) << POS);
self.w.bits |= ((v & MASK) as u16) << POS;
self.w
}
pub fn set_max(self, v: u8) -> &'a mut W {
unsafe { self.bits(v) }
}
}
pub(crate) struct PEpNumW<'a> {
w: &'a mut W,
}
impl<'a> PEpNumW<'a> {
pub unsafe fn bits(self, v: u8) -> &'a mut W {
const POS: u8 = 8;
const MASK: u8 = 0xf;
self.w.bits &= !((MASK as u16) << POS);
self.w.bits |= ((v & MASK) as u16) << POS;
self.w
}
pub fn set_epnum(self, v: u8) -> &'a mut W {
unsafe { self.bits(v) }
}
}
pub(crate) struct PDAddrW<'a> {
w: &'a mut W,
}
impl<'a> PDAddrW<'a> {
pub unsafe fn bits(self, v: u8) -> &'a mut W {
const POS: u8 = 0;
const MASK: u8 = 0x3f;
self.w.bits &= !((MASK as u16) << POS);
self.w.bits |= ((v & MASK) as u16) << POS;
self.w
}
pub fn set_addr(self, v: u8) -> &'a mut W {
unsafe { self.bits(v) }
}
}
|
